A device and data transmission method for high-speed serial transmission based on LVDS

Abstract

The invention relates to a high-speed serial transmission device based on LVDS and its method, and relates to the technical field of data communication, including a transmitter and a receiver, the transmitter and the receiver are connected in communication, and it is characterized in that: the transmitter is responsible for Processing data transmission, the receiver is responsible for processing data reception; the transmitter and the receiver can use the same frequency rather than the same source working clock, the transmitter is provided with at least one, and the receiver is provided with at least one. The sending end of the present invention uses a fixed numerical frame format and a method of filling data, and uses a method of re-detecting the frame boundary each time at the receiving end, automatically detecting the frequency deviation fast and slow signs to control, and only receiving valid data and discarding the filling data, thereby effectively Realize two-way communication between the same frequency and non-homologous systems; thus achieve the effects of simple circuit structure, low cost, easy implementation, no buffer circuit, small data transmission delay, high real-time performance, and high communication rate.

Description

technical field [0001] The invention relates to the technical field of data communication, in particular to an LVDS-based high-speed serial transmission device and a data transmission method. Background technique [0002] With the development of technology, the data communication rate requirements between different chips in the same unit board or between different circuit boards are increasing; therefore, corresponding high-speed transmission methods are required to solve engineering technical problems. At present, the standard high-speed communication protocols commonly used between different chips or different circuit boards mainly include USB, network port, SATA, PCIE or other specific transmission protocols based on SERDES devices. These transmission protocols or standards require complex CDR clock recovery. The unit may need to be supported by complex application software; that is, it needs complex hardware circuit support or complex application software support, so the...

AI Technical Summary

Problems solved by technology

[0004] The above existing technologies require complex dedicated circuits (chips), or require more external connection lines, or require self-made CDR clock recovery, or have disadvantages such as data recovery that needs to be controlled by complex buffer circuits, or high cost of use.

Images